Title:
BACKLIT FULL TRAVEL KEY ASSEMBLY
Document Type and Number:
WIPO Patent Application WO2003073453
Kind Code:
A3
Abstract:
A key assembly (10) including a key support structure (12), a switch (16), a base (18), and a moveable key (20). A light source (70), such as an LED, is mounted to the base to provide illumination for backlighting a translucent region disposed in the moveable key. In operation, when pressure is exerted against the moveable key, the moveable key axially translates to operate the switch. When the moveable key is in its at-rest position, light from the light source will be efficiently and uniformly dispersed through the key assembly to backlight the translucent region based on the location of said light source.
Inventors:
CLARK JAMES T
JOHNSON AARON D
JOHNSON AARON D
Application Number:
PCT/US2003/005027
Publication Date:
March 17, 2005
Filing Date:
February 20, 2003
Export Citation:
Assignee:
ADVANCED INPUT DEVICES INC (US)
International Classes:
H01H13/702; H01H3/12; (IPC1-7): H01H9/00
Foreign References:
| US4078257A | 1978-03-07 | |||
| US4551598A | 1985-11-05 | |||
| US5612692A | 1997-03-18 | |||
| US6545232B1 | 2003-04-08 |
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